When Does Rigorous Impact Evaluation Make a Difference? The Case of the Millennium Villages

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dc.creatorClemens, Michael A.
dc.creatorDemombynes, Gabriel
dc.date2012-03-19T18:42:51Z
dc.date2012-03-19T18:42:51Z
dc.date2010-11-01
dc.date.accessioned2026-07-01T01:08:50Z
dc.descriptionWhen is the rigorous impact evaluation of development projects a luxury, and when a necessity? This Paper studies one high-profile case: the Millennium Villages Project (MVP), an experimental and intensive package intervention to spark sustained local economic development in rural Africa. it illustrates the benefits of rigorous impact evaluation in this setting by showing that estimates of the project's effects depend heavily on the evaluation method. Comparing trends at the MVP intervention sites in Kenya, Ghana, and Nigeria to trends in the surrounding areas yields much more modest estimates of the project's effects than the before-versus-after comparisons published thus far by the MVP. Neither approach constitutes a rigorous impact evaluation of the MVP, which is impossible to perform due to weaknesses in the evaluation design of the project's initial phase. These weaknesses include the subjective choice of intervention sites, the subjective choice of comparison sites, the lack of baseline data on comparison sites, the small sample size, and the short time horizon. The authors describe how the next wave of the intervention could be designed to allow proper evaluation of the MVP's impact at little additional cost.
dc.formatapplication/pdf
dc.formattext/plain
dc.identifierhttp://www-wds.worldbank.org/external/default/main?menuPK=64187510&pagePK=64193027&piPK=64187937&theSitePK=523679&menuPK=64187510&searchMenuPK=64187283&siteName=WDS&entityID=000158349_20101115114009
dc.identifierhttps://hdl.handle.net/10986/3959
dc.identifier10.1596/1813-9450-5477
dc.identifier.urihttp://hdl.handle.net/123456789/415594
dc.languageEnglish
dc.relationPolicy Research working paper ; no. WPS 5477
dc.rightsCC BY 3.0 IGO
dc.rightshttp://creativecommons.org/licenses/by/3.0/igo/
dc.rightsWorld Bank
dc.subjectAGRICULTURAL DEVELOPMENT
dc.subjectAGRICULTURAL PRODUCTION
dc.subjectAGRICULTURAL TECHNOLOGY
dc.subjectBASELINE SURVEYS
dc.subjectBULLETIN
dc.subjectCENSUSES
dc.subjectCHILD HEALTH
dc.subjectCHILD MORTALITY
dc.subjectCHILD MORTALITY RATE
dc.subjectCHILD MORTALITY RATES
dc.subjectCHILD SURVIVAL
dc.subjectCHRONIC MALNUTRITION
dc.subjectCLINICS
dc.subjectCOMMUNITIES
dc.subjectCOMMUNITY DEVELOPMENT
dc.subjectCOMMUNITY HEALTH
dc.subjectCORRELATIONS
dc.subjectCORRUPTION
dc.subjectCOUNTERFACTUAL
dc.subjectDATA COLLECTION
dc.subjectDEVELOPING COUNTRIES
dc.subjectDEVELOPMENT INTERVENTIONS
dc.subjectDEVELOPMENT PLANS
dc.subjectDEVELOPMENT RESEARCH
dc.subjectDRINKING WATER
dc.subjectECONOMIC DEVELOPMENT
dc.subjectECONOMIC GROWTH
dc.subjectECONOMIC POLICIES
dc.subjectEPIDEMIC
dc.subjectEVALUATION METHODS
dc.subjectEVALUATION RESULTS
dc.subjectEXPERIMENTS
dc.subjectFIELD EXPERIMENTS
dc.subjectGENDER
dc.subjectGENDER EQUALITY
dc.subjectGLOBAL DEVELOPMENT
dc.subjectGLOBAL POVERTY
dc.subjectHEALTH INTERVENTIONS
dc.subjectHIV
dc.subjectHOSPITAL
dc.subjectHOUSEHOLD INCOME
dc.subjectHOUSEHOLD SURVEYS
dc.subjectHOUSEHOLDS
dc.subjectHUMAN CAPITAL
dc.subjectIMPACT EVALUATION
dc.subjectIMPORTANT POLICY
dc.subjectINCOME
dc.subjectINFORMATION CAMPAIGNS
dc.subjectINTEGRATED DEVELOPMENT
dc.subjectINTEGRATED RURAL DEVELOPMENT
dc.subjectINTERNATIONAL COMMUNITY
dc.subjectINTERNATIONAL JOURNAL OF EPIDEMIOLOGY
dc.subjectINTERVENTION
dc.subjectINTERVENTIONS
dc.subjectIRD
dc.subjectLEARNING
dc.subjectLIVE BIRTHS
dc.subjectLIVELIHOOD
dc.subjectLIVING CONDITIONS
dc.subjectLIVING STANDARDS
dc.subjectLOCAL ECONOMY
dc.subjectLOCAL GOVERNMENTS
dc.subjectLOCAL INFRASTRUCTURE
dc.subjectMALARIA
dc.subjectMATERNAL MORTALITY
dc.subjectMEASLES
dc.subjectMEASLES IMMUNIZATION
dc.subjectMILLENNIUM DEVELOPMENT GOAL
dc.subjectMILLENNIUM DEVELOPMENT GOALS
dc.subjectMODERNIZATION
dc.subjectMONITORING TEAMS
dc.subjectNATIONAL GOVERNMENT
dc.subjectNATIONAL LEVEL
dc.subjectNATIONAL PLANS
dc.subjectNATIONAL POLICY
dc.subjectNATIONAL POPULATION
dc.subjectNATURAL RESOURCE
dc.subjectNEWBORNS
dc.subjectNUMBER OF HOUSEHOLDS
dc.subjectNURSE
dc.subjectNUTRITION
dc.subjectORAL REHYDRATION SOLUTION
dc.subjectPER CAPITA INCOME
dc.subjectPILOT PROJECTS
dc.subjectPLAN OF ACTION
dc.subjectPOLICY PROCESS
dc.subjectPOLICY RESEARCH
dc.subjectPOLICY RESEARCH WORKING PAPER
dc.subjectPOPULATION DATA
dc.subjectPOPULATION ESTIMATES
dc.subjectPOVERTY REDUCTION
dc.subjectPRACTITIONERS
dc.subjectPREGNANT WOMEN
dc.subjectPRIMARY EDUCATION
dc.subjectPRIMARY SCHOOL
dc.subjectPROGRAM EFFECTS
dc.subjectPROGRAMS
dc.subjectPROGRESS
dc.subjectPROJECT EVALUATION
dc.subjectPUBLIC HEALTH
dc.subjectPUBLIC SERVICE
dc.subjectPURCHASING POWER
dc.subjectPURCHASING POWER PARITY
dc.subjectQUANTITATIVE INDICATORS
dc.subjectREGIONAL POPULATION
dc.subjectREMITTANCE
dc.subjectRESEARCH DESIGN
dc.subjectRESEARCH WORKING PAPERS
dc.subjectRESEARCHERS
dc.subjectRESETTLEMENT
dc.subjectRESOURCE CONSTRAINTS
dc.subjectRURAL AREA
dc.subjectRURAL AREAS
dc.subjectRURAL POPULATION
dc.subjectRURAL POVERTY
dc.subjectSAMPLE SIZE
dc.subjectSANITATION
dc.subjectSANITATION FACILITIES
dc.subjectSCARCE RESOURCES
dc.subjectSCHOOL ATTENDANCE
dc.subjectSCIENCES
dc.subjectSCIENTIFIC INFORMATION
dc.subjectSERVICE DELIVERY
dc.subjectSERVICE DELIVERY SYSTEMS
dc.subjectSKILLED BIRTH ATTENDANCE
dc.subjectSKILLED PERSONNEL
dc.subjectSPILLOVER
dc.subjectSURVEY DATA
dc.subjectSURVIVAL RATE
dc.subjectSUSTAINABLE GROWTH
dc.subjectTRANSPARENCY
dc.subjectTRANSPORTATION
dc.subjectVALIDITY
dc.subjectVILLAGES
dc.titleWhen Does Rigorous Impact Evaluation Make a Difference? The Case of the Millennium Villages

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